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(NoHo deL) W. W. HUNTLEY & A. HEIN E.

Flour Sieve. I

NO. 232,507. Patented Sept. 21,1880.

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UNITED STATES PATENT Erin.

WILLIAM W. HUN TLEY AND AUGUST HEINE, OF SILVER GREEK, NEW YORK.

ASSIGNORS TO HUNTLEY, HOLCOMB & HEINE, OF SAME PLACE.

FLOUR-SIEVE.

SPECIFICATION forming part of Letters Patent No. 232,507, datedSeptember 21, 11880.

To all whom it may concern:

Be it known that we, WILLIAM W. HUNT- LEY and AUGUST HEINE, both ofSilver Creek, in the county of Chautauqua and State of New York, haveinvented new and useful Improve ments in Flour- Sieves, of which thefollowin is a specification, reference being bad to the accompanyingdrawings.

This invention relates to a sieve which is designed for the use ofmillers in testing the separating capacity or. effect of bolting-clothsof different degrees of fineness upon the ground meal or middlings.

The object of this invention is to construct I 5 the sieve in suchmanner that the sieve can be readily clothed with bolting-cloth of anydesired degree of fineness, and that the bolting-cloth will be preventedfrom being torn by being repeatedly applied to the sieve.

Our invention consists in bombining with a conical sieve-frame adetachable hoop of tapering form, which fits snugly upon the small endof the sieve-frame, and one or more detachable pieces of bolting-clothadapted to be 2 5 stretched over the small end of the sieve-frame bybeing clamped between the latter and the detachable hoop also, incombining with the sieve-frame and detachable hoop one or more sectionsof bolting-cloth provided with an an- 3o nular marginal piece of tickingor other suitable flexible material, which is clamped between thedetachable hoop and the sieve-frame,

and which receives the wear in stretching thebolting-cloth' on thesieve, thereby protecting 3 5 the bolting-cloth.

In the accompanying drawings, Figure 1 is a sectional elevation of ourimproved sieve. Fig. 2 is a side elevation thereof. Fig. 3 is a planview of one of the sections of boltingcloth; and Fig. 4 is a fragmentarysectional View, on an enlarged scale, of one side of the sleve.

Like letters of reference refer to like parts in the several figures. 45 A represents the sieve-frame, of circular or other suitable form, andconstructed of wood,

tin, or other suitable material.

B is aqreta'chable hoop or ring fitting snugly upon the small end of theframe A. The lat- 5o ter and the hoop are made slightly taperingApplication filed July 6, 1880. (No model.)

or conical, so that the hoop can be secured in place by. simply pressingit upon the frame A without requiring any other fastening.

0 represents a circular piece of boltingcloth, made somewhat smaller insize than the sieveframe to which it is applied, andD is an annularpiece of ticking or other strong flexible material, secured around theedge of the bolting-cloth G by sewing. The strip of ticking is made ofsuch width that the diameter of the disk, composed of ticking andbolting-cloth, is somewhat larger than that of the sieve-frame, so thatthe ticking will overlap the end of the frame both inwardly andoutwardly when the bolting-cloth is applied thereto.

When the sieve-frame is constructed of tin the smaller end of the frameis turned over or wired, so as to form ablunt edge, as represented inthe drawings.

Upon placing the disk of bolting-cloth and ticking upon the small end ofthe sieve-frame and pressing the hoop B down over the ticking, thelatter is clamped between the diskframe and the hoop, and thebolting-cloth is tightly stretched over the open end of the sieve-frame.

In applying the hoop to the small end of the sieve -frame the large endof the hoop comes in contact with the fabric. first, and as there isconsiderable space between the large end of the hoop and the small endof the sieve-frame, the euttin g action which would take place if theframe and hoop were cylindrical, and which tends to tear the cloth, isavoided.

A suitable number of pieces of bolting=cloth of the different degrees offineness usually employed in mills are furnished with each sieve, sothat any one of these pieces of cloth can be secured to the sieve atwill and its effect upon 9 the meal or other material be determined. Anextra ring or hoop for each piece of bolting cloth is thereby dispensedwith, and the cost of the sieve is considerably reduced.

We claim as our invention- 9 5 1. The combination of a conicalsieve-frame,

a detachable hoop of tapering form fitting snugly upon the small end ofthe sieve-frame and one or more detachable pieces of bolti cloth adaptedto be stretched over thesmall 10,0

end of the sieve-frame, substantially as set clamped between thesieve-frame and thehoop,

forth. substantially as set forth. 2. The combination with a sieve-frameof a detachable hoop fitting snugly on the sie ve- HUNTLEY 5 frame, andone or more pieces of bolting-cloth adapted to be stretched over thesieve-frame, Witnesses:

and provided with a marginal strip of ticking ALBERT H. SPAULDING,

or other strong flexible material, which is DANA U. SWIFT.

